BSA223SP P-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The BSA223SP is a P-Channel MOSFET manufactured by Infineon Technologies, designed for surface mount applications in the SC-75 (SOT-416) package. This device operates at 20V drain-to-source voltage with a continuous drain current rating of 390mA at 25°C and maximum power dissipation of 250mW. The BSA223SP is part of the OptiMOS™ series and is currently discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

BSA223SP

Infineon TechnologiesIn Stock: 3650BSA223SP Datasheet

Current PartRFQ

NTA4151PT1G

onsemiIn Stock: 209459NTA4151PT1G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BSA223SP is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• FET Type: P-Channel (required)
• Drain to Source Voltage (Vdss): 20V (required)
• Package / Case: SC-75, SOT-416 (required for mechanical compatibility)
• Mounting Type: Surface Mount (required)
• Operating Temperature Range: -55°C to 150°C (required)

Allowable Variation Parameters:

• Continuous Drain Current (Id): Substitute must equal or exceed 390mA
• Rds On (Max): Substitute must equal or be lower than 1.2 Ohm
• Power Dissipation (Max): Substitute must equal or exceed 250mW
• RoHS Compliance: ROHS3 Compliant (required)

The NTA4151PT1G from onsemi meets all critical matching parameters and exceeds allowable variation thresholds, qualifying it as a direct substitute for the BSA223SP.

Parameter Comparison

Engineering Selection Recommendations

The NTA4151PT1G is a qualified substitute for the BSA223SP based on the following engineering criteria:

Electrical Compatibility: The NTA4151PT1G maintains identical drain-to-source voltage (20V) and operating temperature range (-55°C to 150°C). The substitute device provides higher continuous drain current (760mA versus 390mA) and lower on-resistance (0.36 Ohm versus 1.2 Ohm), resulting in improved thermal performance and reduced power dissipation in equivalent circuit applications.

Mechanical Compatibility: Both devices use the SC-75 (SOT-416) surface mount package, ensuring identical PCB footprint and assembly process compatibility.

Regulatory Compliance: Both the BSA223SP and NTA4151PT1G are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Product Status: The NTA4151PT1G is listed as Active with 209,400 units in stock, providing reliable long-term availability compared to the discontinued BSA223SP.

Frequently Asked Questions (FAQ)

Q: Can the NTA4151PT1G directly replace the BSA223SP in existing designs?

A: Yes. The NTA4151PT1G is mechanically and electrically compatible with the BSA223SP. Both devices share the SC-75 (SOT-416) package footprint and operate within the same voltage and temperature specifications. The substitute device provides superior electrical performance with higher current rating and lower on-resistance.

Q: What are the key differences between these two devices?

A: The primary differences are continuous drain current (760mA for NTA4151PT1G versus 390mA for BSA223SP) and on-resistance (0.36 Ohm versus 1.2 Ohm). These differences represent performance improvements in the substitute device. Both devices maintain identical 20V Vdss rating and -55°C to 150°C operating temperature range.

Q: Are there any package or pinout differences?

A: No. Both devices use the SC-75 (SOT-416) surface mount package with identical pinout and footprint. No PCB modifications are required for substitution.

Q: What is the product status of each device?

A: The BSA223SP is discontinued at DiGi Electronics. The NTA4151PT1G is active with high inventory availability (209,400 units in stock), making it the recommended choice for new designs and component replenishment.

Q: Do both devices meet current compliance standards?

A: Yes. Both the BSA223SP and NTA4151PT1G are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic components.